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HP HP-25 User Manual

HP HP-25
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(fraction)
key.
For
example,
to
see
the
fractional
por-
tion
of
123.456
used
above:
Press
Display
123.456
Bl
(Frac
Only
the
fractional
portion
of
the
number
is
displayed,
rounded
here
to
normal
FIX
2
display.
When
7]
is
pressed,
the
integer
portion
of
the
number
is
lost.
The
entire
number,
of
course,
is
preserved
in
the
LAST
X
register.
Reciprocals
To
calculate
the
reciprocal
of
a
number
in
the
displayed
X-
register,
then
press
[}
.
For
example,
to
calculate
the
recip-
rocal
of
25:
Press
Display
256
You
can
also
calculate
the
reciprocal
of
a
value
in
a
previous
calculation
without
reentering
the
number.
For
example,
to
calculate
1
1/3+1/6
Press
Display
300
Reciprocal
of
3.
6
Reciprocal
of
6.
Sum
of
reciprocals.
B
Reciprocal
of
sum.
Square
Roots
To
calculate
the
square
root
of
a
number
in
the
displayed
X-register,
press[
.
For
example,
to
find
the
square
root
of
16:
Press
Display
16
=]
To
find
the
square
root
of
the
result:
Press
Display
nz
[20

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HP HP-25 Specifications

General IconGeneral
BrandHP
ModelHP-25
CategoryCalculator
LanguageEnglish

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